Apple Watch Series 4 Review – The Best Health Monitor

Apple Watch Series 4 brings the most convenient health features which are well-recognized the benefits for all human beings on this planet. I could say it’s The Best Health Monitor so far!

There are also some features that still works quite well in Apple Watch Series 4, what I think the biggest selling point of it is the heart rate reading which is the best pre-alert for any heart disease in early stages. You cannot miss it!

Let’s follow Blablaphones to know more. 🙂 🙂 🙂

Apple Watch Series 4

Product: Apple Watch Series 4
Display: 1.78″ OLED Retina (448 x 368 pixels)
Chipset: Apple dual-core 64-bit S4 chip
Sensors:  32 g-force accelerometer, barometer, gyroscope, ECG electrode, optical heart rate, ambient light
Storage: 16 GB
Operating System: WatchOS 5
Wireless technology: NFC, WiFi, Bluetooth 5.0
Battery: Up to 18 hours
Other Features:
IP68 and 5 ATM dust and water-resistant



Design & Display

Compared to Apple Watch Series 3, Apple Watch Series 4 gets a bigger screen with 30% more display. From the side, the body looks wider and thicker. From the front, the corner looks rounder and the frame gets more seamless.

We all know about the benefits of a bigger screen which allows you to read more data on

Apple Watch Series 4, and it also reduce the possibility that you launch apps by mistakes.

Infograph Watch Face

The default infograph watch face on the Apple Watch Series 4’s screen is with 8 elements: UV Index, Air Quality Index, Weather, World Clock, Solar, Earth, Sunrise/Sunset, Moon.

You may also adjust each element to suit your tastes for a better experience.

Infograph watch face


50% More LOUDER Speaker

The speaker is re-designed and arranged at the opposite side of microphone, Apple mentioned the sound is 50% louder than the previous Apple Watch Series.

It helps people to have a nice and proper phone call by Apple Watch Series 4 with a clear sound and without much more echoes.

Apple Watch 4 display


Digital Crown

Apple re-engineered digital crown for Apple Watch Series 4. Digital Crown gets 30% smaller than the previous generation and it also includes 21% more components inside.(Amazing!)

It gives back haptic feedback now when you scroll down or up the digital crown to navigate, and haptic feedback makes me feel like it’s just like a mechanic watch, more premium!

digital crown on apple watch 4


Faster Experience

Apple Watch Series 4 is equipped with many sensors which make it super powerful to tell you all the info you might need.

It’s depending on S4 Chip & the 4th generation of CPU inside and boost the performance up to 2x faster across the entire system.

4th generation of CPU in Apple Watch Series 4

There are two sensors in Apple Watch Series 4: Optical Heart Sensor and Electrical Heart Sensor.

You could record your heart rate with a simple press on the digital crown, then the electrode in the Digital Crown and electrodes on the back crystal will read your heart together.

After that, you can use the ECG app to generate an ECG and share it with your doctor for consulting advice.

It feels like something only happens in tech movie around 2050, but now the advanced technology by Apple is going to take us to the future.

This heart reading is great only if the accuracy is high enough to provide the correct data, but Apple Watch owners may not use this feature in some countries due to the law. It’s a great pity!

optical heart sensor


Besides the heart rate reading by both optical heart sensor and electrical heart sensor, Apple Watch Series 4 will also detect when you fall.

When You Fall

With the accelerometer and gyroscope, Apple knows the time when you drop or fall on the ground. It will pop up an SOS emergency call to take you to the right place.

If you are fine, you could simply pass this call. But if there is no feedback after 60 seconds, the emergency call will be automatically executed to the contact in your emergency list.

emergency call when you drop



People nowadays get so many to worry about, that’s the reason why meditation is getting so much popular in recent years.

Apple Watch Series 4 could let you set “Breathe” app in the infograph watch face, simply choose one corner to launch “Breathe”.

There are three types of meditation modes in Breathe app, you could choose the one most suits your mood. It will guide you to take a series of stable and long breath to become more focus on your current life!

It does a great job to help me to calm down, to relax, to reduce the stress(not overthink) no matter from your job, your relationship with someone, your anxiety.

Three modes in Breathe mode

People tend to ignore the mental health, but we know mental health is as important as your physical health.

I am a bit surprised that Apple decided to set Breathe as a default app since 2016, and it is really something that I cannot forget to praise Apple.

“A very very good job to help people to practice mindfulness!” and I LOVE it!

I always remember what my mother told me when I was down “The only one survives is the kind of person who is the ultimate optimist!” So, try “breathe today”, you only need to raise your wrist and practice with Breathe!

So let’s imagine the advantages that we could be pre-alerted for our heart rate irregularity and practice meditation to clear our messy mind with just one Apple Watch Series 4!

A good-health condition is priceless!


Apple Watch Series 4 is your truly workout partner and never being late or with many excuses, I know many of us could relate.

Apple Watch Series 4 knows the way you work out and show all the metric you might need to know on Workout app.

The best part of Apple Watch Workout app is you could pair the compatible gym equipment and keep the data in your workout app.

Apple Watch Series 4will sense whether you are working out or not to record the pace or heart rate, once you get distracted with the cooler body temperature, it will also remind you to end the workout.

connected with gym equipments and detect gym mode

For jogging, it will let you set up a target pace first. Simply tap the screen when you jog, it will let you know you are behind or ahead of the target pace.

Running taken further

For swimming, Apple Watch Series 4 is IP68 rating and water-resistant to 50 meters. It’s a great swimming partner too.

Remember that every time you get a watch that mentioned it’s water-resistant, it got broken due to water after a few times swimming or surfing?

Sweat, surf, and swim proof.

Apple Watch Series 4 is also compatible with other apps, such as surfing app “Dawn Patrol”, “Swing” for tennis, “Nike Run Club” for jogging.

I personally prefer the Nike Run Club since I only know how to run.

Plays well with others.


Activity & Connect

The activity app keeps your daily movement as three rings: Move, Exercise, and Stand. You could close three rings each day when you reach your goals.

  • Move: move ring tracks the calories you burn through all the movements you make all day long. For example, play chasing with kids, gardening, biking to work, walk your dog, dancing in a concert, etc…
  • Exercise: shows total minutes you did for your exercise or just moving fast, such as running, swimming, or high-intensive training, etc…
  • Stand: it will remind you to stand up and move your butts since sitting all day is bad for health. You could stand up for at least one minute during 12 different hours through a day. For example, get yourself a cup of water in the office, visit a coworker and discuss the project, or simply stretch, etc…
3 rings on Activity app on Apple Watch

Apple Watch Series 4 with cellular makes it easy to stay in touch with people you are close with or get you to the apps you care about most.

With cellular service, you do not need your phone no matter when you are jogging, working out in the gym, or biking to work. What you need is to easily raise your wrist.

You could also use maps, Apple Music, Apple pay on your Apple Watch Series 4 with cellular.

My FAVORITE part is you could tell Siri to do some errands for you which make your Apple Watch Series 4 sometimes more convenient than your iPhone.

You don’t even have to say “Hi Siri!“, just raise your wrist and speak then Siri will appear and show its magic.

I like to say my Apple Watch Series 4 is my lamp from Aladdin. Hahaha…

Siri is on Apple Watch Series 4



Top#01 The Price

Compared the price of Apple Watch Series 3, the price goes up to USD$399(GPS only version). People might find out except the ECG feature, the rest updates shouldn’t cost up that much.

If you happen to live in countries that ECG is not applicable to the local law, it will be a not-very-good bargain for you.


Top#02 Battery Life

Apple gets the most complaints about its battery life. Apple Watch Series 4needs you to charge it for a whole night, then it will last 18 hours.

Compared to its competitors, this is really sad news since the smartwatches from other brands could last for ONE week after one single charge!

Top#03 44mm Is Still Too Small

For some people get used to a big round sport watch, they think the display is still too small to cover all the information they need.

Especially for senior generations, they could not even see clear with naked eyes, so the size of Apple Watch Series 4 could help better.

>>>Check the Price and Find More Details Here<<<


I love the design, the ECG, the workout app to record my movement and calories, and the connection with other apps. They all quite work well across the system.

Without ECG, I still love my Apple Watch Series 4 since it helps me much stuff with ease. It’s still the best smartwatch in the industry if you don’t care much about the charging speed.

I hope you enjoyed this review and if you have any questions about Apple Watch Series 4 or want to leave your own personal review, leave a comment below.

(All photo: Apple)

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Apple Watch 4






Build Quality






Matt Lin


  1. Hello Matt, the apple watch series 4 has taken over the Fitbit series with these excellent features.

    But then, the battery lifespan is still a big consideration to it too but other than that, every other detail concerning it are simply next-gen.

    I like the accuracy at which it delivers and connecting well with apps makes it great. This would actually be the best around for anyone who wants to get a device to monitor their health.

    Wow! That’s great! I will share this out to let people know about the beastly apple watch series 4!!!

    • Hi RoDarrick,

      Thanks for stopping by and leave your comment on this. I like Apple Watch Series 4 since it’s the best health monitor I could find in the industry now and it does lots of help for my parents.

      That’s another reason I love it since my parents could easily understand how to use it. How amazing it is!

      You may check here for more details! 🙂 🙂 🙂

  2. Thank you for the good work on the Apple Watch Series 4 Review.

    After watching the video I love how it was integrated into the product and the 30% larger display features. I think I will prefer the black color product due to the nature of my job and all the design is excellent.

    With 18hour battery I think is very ok for me. Useful post, thanks.

  3. Hi, if I have to just define your website in 1-word, tech-savvy website.

    Very impressed with not only the outlook of the website but the information that is available on your website too. The reviews that you have provided are truly legit and helpful.

    This is of awesome help to someone wanting to buy something and find the reviews on your website. Good work! Impressed.

    • Hi LK,

      Glad you like my website and my post of Apple Watch Series 4, I think everyone should know more about the dark sides of a product before purchasing.

      That’s the concept I want to share with the world, buy less but better.

      🙂 🙂 🙂

  4. Thanks for your review, Matt!

    It definitely has some drawbacks, so I appreciate you sharing this info. It’s definitely a shame about the battery life.

    Even though I am an Apple fan, your review has got me having second thoughts about purchasing one.

    I’m just wondering about the issue with the ECG feature in some countries?

    Do you know which countries wouldn’t be able to use this feature? And why?

    Cheers! Stevie

    • Hi Stevie,

      Thanks for stopping by and leave your honest feedback on this review. To be honest, this ECG app is only available in Hong Kong and 19 European countries, including France, Germany, Italy, Spain and the United Kingdom by the news release in Mar’19.

      I hope you are staying one of the above countries, then you could enjoy all Apple Watch Series 4 could bring.

  5. A friend of mine uses the apple smartwatch. Not so sure its the particular series but he brags about how he can calculate his steps per day efficiently, his heart rate and other health issues too.

    They’re really awesome if you think about it. My dad has been gushing over them too. He wants one of those. He is an arid fan of wristwatches so packing technology into his favorite accessory is cool for him.

    I should gift him this series 4. Has really good specs especially when it come to health. Very very cool.

    • Hi Henderson,

      Happy to see you again, it looks like you enjoy my blog a lot which inspires me and motivates me to review more products. 🙂 🙂 🙂

      I think better health makes us walk longer, and it worths every dime of Apple Watch Series 4 for your dad.He will definitely love it!

  6. I really love this apple watch series 4 quality that you have discussed in your review about it. Most of the features like when I fall it will make a call to emergency automatically and a good partner during exercise and workout.

    Your honest review leaves me no choice than to order for one through your affiliate link and I will be sharing your post in social media groups for lovers of phones.

    your post is informative. Thank you for sharing your research about the Apple watch series 4!

  7. Hi Matt,

    Excellent review for Apple watches series 4.I didn’t now that Apple already released their series 4 watch.

    This is amazing news. Most of the features from this watch is amazing, especially the people who health-conscious and want to monitor every step of their health improvement workout, but I love especially their one feature where if anyone got sudden fall then this watch automatically inform emergency service.

    I think this is the coolest feature. Although price bit high but I don’t think it will change the people’s mind who really worried about their health and want yo monitor.Thanks for this review.

  8. I definitely think the health monitors watches are changing our lives in the sense that “the future” is already here. It is awesome to see today how the health —both physical and mental— can be perfectly managed by the technology, as well as it is amazing to see today all the powerful features that this small device can bring us.

    It is really nice to see how two completely different areas, health and technology, can be so easily related.

    For example, it is surprising the fact that this device can be already a proof for our doctor in the sense that it can automatically generate an electrocardiogram (ECG).

    Also, it is always good to have a security measure like the automatic emergency call whenever and wherever we are.

    Appel Watch Series 4 has improved a lot both in software, hardware, and design. Maybe the price is a little bit high, but this is the price that any new jewel must pay.

    Also, the graphical user interface could improve in the sense of making a bigger display with any possible invention. And we can always create new applications for the watch in order to expand the device capabilities even more. We only have to give time to time.

    Over time the technology will gradually improve and change definitely the way we live our lives. And over time, this kind of products will lower prices, so they will be more accessible to anyone. The future is in our hands, the future is just starting now.

    • Hi Nestor,

      Thanks for the comment, yes, I think the price stops people to buy it! But, I tend to take this purchase as an investment, so I don’t feel any quilty after buying it online. 🙂 🙂 🙂

      The price is getting lower now, check the latest price here!

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